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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

onsemi PN3568_J05Z

Name: PN3568_J05Z
Brand: onsemi
SKU: PN3568_J05Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PN3568_J05Z

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-226-3, TO-92-3 (TO-226AA)

Datasheet:: PN3568_J05Z.pdf

Description:: TRANS NPN 60V 1A TO-92-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PN3568_J05Z from Fairchild Semiconductor is an NPN general-purpose bipolar junction transistor (BJT) designed for medium-power amplification and switching applications up to 500mA collector current. It features a V_CEO of 60 V, V_CBO of 80 V, and DC current gain (h_FE) ranging from 40 to 120 at I_C = 30 mA, operating across –55°C to +150°C junction temperature range.

For engineers reviewing the PN3568_J05Z datasheet, pinout, applications, or equivalent options, key selection considerations include its TO-92 package thermal resistance (R_θJA = 200°C/W), V_CE(sat) ≤ 0.25 V at I_C = 150 mA/I_B = 15 mA, and suitability for linear amplifier stages and low-speed digital switching in industrial control interfaces.

Technical Context

The PN3568_J05Z operates as a silicon NPN BJT with fixed-emitter configuration and base-controlled conduction. Its design supports continuous collector currents up to 1.0 A (derated above 25°C), with breakdown voltages defined under specified test conditions: V(BR)_CEO = 60 V at I_C = 30 mA, I_B = 0; V(BR)_CBO = 80 V at I_C = 100 µA.

Thermal performance is characterized by R_θJA = 200°C/W and R_θJC = 83.3°C/W, enabling operation in ambient temperatures from –55°C to +150°C when mounted on standard PCBs without heatsinking. Small-signal parameters include h_fe = 3.0–30 at f = 20 MHz, C_ob = 20 pF, and C_ib = 80 pF.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	60 V - Maximum safe collector-emitter voltage before breakdown under open-base condition.
I_C (Continuous)	1.0 A - Continuous collector current rating; derates linearly above 25°C at 5.0 mW/°C.
h_FE	40–120 - DC current gain at V_CE = 1.0 V; enables predictable base drive sizing for switching.
V_CE(sat)	≤ 0.25 V - Low saturation voltage at I_C = 150 mA/I_B = 15 mA; minimizes conduction loss in switch mode.
T_J Range	–55°C to +150°C - Validated junction temperature range; supports industrial and automotive under-hood environments.
P_D	625 mW - Total power dissipation at 25°C ambient; defines thermal design margin for TO-92 mounting.

Pinout & Package

PN3568_J05Z is housed in a through-hole TO-92 package with standardized lead configuration: Emitter (Pin 1), Base (Pin 2), Collector (Pin 3). The package provides mechanical stability and moderate thermal dissipation for board-level mounting.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current exit terminal for NPN conduction path	Connected to ground or low-side reference; determines emitter-follower or common-emitter topology.
2 (Base)	Control input for minority-carrier injection	Receives bias current to modulate collector current; requires series resistor for current limiting.
3 (Collector)	Current entry terminal for NPN conduction path	Connected to load or supply rail; carries full switched/amplified current with minimal V_CE(sat).

Key Features

Feature	Design Value
Medium-power switching capability	Rated for 1.0 A continuous I_C and 625 mW dissipation - supports relay drivers and motor interface stages.
Wide operating temperature range	–55°C to +150°C junction range - suitable for unheated enclosures and thermally stressed industrial zones.
Low V_CE(sat)	≤ 0.25 V at rated I_C/I_B - reduces heat generation and improves efficiency in saturated-switch applications.
High V_CBO rating	80 V collector-base breakdown - enhances robustness against transient voltage spikes in inductive load switching.

Applications

Relay Driver Circuit	DC Motor Speed Control
Use Scenario: Driving 12 V, 300 mA electromagnetic relays in PLC I/O modules. IC Role / Device Role / Timing Role: NPN switch configured in common-emitter mode, turning relay coil on/off via microcontroller GPIO. Use Value: V_CE(sat) ≤ 0.25 V ensures <100 mW coil-side loss; h_FE ≥ 40 guarantees reliable turn-on with 5 mA base drive.	Use Scenario: Pulse-width modulated (PWM) control of small brushed DC motors in HVAC actuators. IC Role / Device Role / Timing Role: Low-frequency switching element handling 400 mA peak motor current at 1–5 kHz PWM. Use Value: 60 V V_CEO accommodates back-EMF spikes; TO-92 package allows compact placement near motor terminals.
Linear Audio Pre-amplifier	Industrial Sensor Signal Conditioning
Use Scenario: First-stage voltage amplification for electret microphone signals in analog audio front-ends. IC Role / Device Role / Timing Role: Common-emitter amplifier biased at I_C = 30 mA, V_CE = 5 V for mid-rail operation. Use Value: h_FE = 40–120 enables stable DC biasing; C_ob = 20 pF limits high-frequency roll-off below 200 kHz.	Use Scenario: Amplifying low-level bridge outputs (e.g., strain gauge, RTD) in process monitoring transmitters. IC Role / Device Role / Timing Role: Differential pair input stage with emitter degeneration for linearity and temperature stability. Use Value: –55°C to +150°C T_J range matches transmitter housing thermal profile; low I_CBO (<50 nA) minimizes offset drift.

Relay Driver Circuit

DC Motor Speed Control

Use Scenario: Driving 12 V, 300 mA electromagnetic relays in PLC I/O modules.

IC Role / Device Role / Timing Role: NPN switch configured in common-emitter mode, turning relay coil on/off via microcontroller GPIO.

Use Value: V_CE(sat) ≤ 0.25 V ensures <100 mW coil-side loss; h_FE ≥ 40 guarantees reliable turn-on with 5 mA base drive.

Use Scenario: Pulse-width modulated (PWM) control of small brushed DC motors in HVAC actuators.

IC Role / Device Role / Timing Role: Low-frequency switching element handling 400 mA peak motor current at 1–5 kHz PWM.

Use Value: 60 V V_CEO accommodates back-EMF spikes; TO-92 package allows compact placement near motor terminals.

Linear Audio Pre-amplifier

Industrial Sensor Signal Conditioning

Use Scenario: First-stage voltage amplification for electret microphone signals in analog audio front-ends.

IC Role / Device Role / Timing Role: Common-emitter amplifier biased at I_C = 30 mA, V_CE = 5 V for mid-rail operation.

Use Value: h_FE = 40–120 enables stable DC biasing; C_ob = 20 pF limits high-frequency roll-off below 200 kHz.

Use Scenario: Amplifying low-level bridge outputs (e.g., strain gauge, RTD) in process monitoring transmitters.

IC Role / Device Role / Timing Role: Differential pair input stage with emitter degeneration for linearity and temperature stability.

Use Value: –55°C to +150°C T_J range matches transmitter housing thermal profile; low I_CBO (<50 nA) minimizes offset drift.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN general-purpose amplifier and switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC547B	V_CEO = 45 V, I_C = 100 mA, h_FE = 200–450 - lower voltage/current rating, higher gain spread	Not suitable for 60 V bus or >200 mA loads; better for low-noise small-signal amplification	Select BC547B only when gain consistency and low-noise performance outweigh voltage/current headroom needs.
MPSA13	V_CEO = 30 V, I_C = 500 mA, h_FE = 50–250 - lower V_CEO, higher max I_C, wider h_FE range	Acceptable for 24 V systems with higher current demand; unsuitable for 48 V+ industrial buses	Choose MPSA13 where higher collector current is critical and system voltage remains ≤30 V.

Compared with BC547B and MPSA13, PN3568_J05Z uniquely balances 60 V breakdown, 1.0 A current capability, and controlled h_FE range-making it optimal for 24–48 V industrial switching where both voltage margin and thermal robustness are required.

Availability

PN3568_J05Z is available at Aetrix Electronics and suitable for relay driver circuits, DC motor control stages, linear audio pre-amplifiers, and industrial sensor signal conditioning requiring stable component supply and long-term manufacturability.

Supply support for PN3568_J05Z includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Fairchild Semiconductor was a U.S.-based semiconductor manufacturer specializing in power management, analog, and discrete devices before its acquisition by ON Semiconductor in 2016.

The PN3568_J05Z belongs to Fairchild's legacy general-purpose BJT family, engineered for cost-effective, thermally resilient amplification and switching in industrial control, power supply, and interface circuits.

FAQ

What is the maximum continuous collector current rating for PN3568_J05Z?

The PN3568_J05Z has a maximum continuous collector current (I_C) rating of 1.0 A at T_A = 25°C. This rating decreases linearly at 5.0 mW/°C above 25°C ambient, consistent with its 625 mW total device dissipation limit. Derating must be applied per the thermal resistance R_θJA = 200°C/W when designing for elevated ambient temperatures.

Does PN3568_J05Z support switching inductive loads such as relays or solenoids?

Yes, PN3568_J05Z supports inductive load switching due to its 80 V V_CBO rating and 60 V V_CEO rating, which provide margin against flyback voltage spikes. For reliable operation, a reverse-biased freewheeling diode must be placed across the inductive load. Its V_CE(sat) ≤ 0.25 V at I_C = 150 mA also minimizes power loss during conduction.

What is the pin configuration of PN3568_J05Z in its TO-92 package?

PN3568_J05Z uses the standard TO-92 pinout: Pin 1 is Emitter, Pin 2 is Base, and Pin 3 is Collector. This configuration is confirmed in the original Fairchild datasheet Rev. B (November 2002) and aligns with JEDEC TO-92 mechanical drawings. No alternate pinouts are documented for this part number.

Can PN3568_J05Z be used in linear amplifier applications?

Yes, PN3568_J05Z is explicitly characterized for linear amplifier use, with h_FE specified at multiple I_C points and small-signal parameters (h_fe, C_ob, C_ib) provided. Its 3.0–30 h_fe at 20 MHz and 20 pF output capacitance support audio-frequency amplification, though bandwidth is limited compared to RF-optimized BJTs.

Is PN3568_J05Z RoHS-compliant and lead-free?

The original PN3568_J05Z datasheet (Rev. B, 2002) predates RoHS legislation and does not specify lead-free or RoHS-compliant construction. As a legacy Fairchild part, it was manufactured with leaded solder terminations. For RoHS-compliant alternatives, consult ON Semiconductor's current portfolio or contact Aetrix Electronics for qualified replacements meeting modern compliance requirements.

PN3568_J05Z Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-226-3, TO-92-3 (TO-226AA)

Packaging:: Bulk

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 1 A

Voltage - Collector Emitter Breakdown (Max):: 60 V

Vce Saturation (Max) @ Ib, Ic:: 250mV @ 15mA, 150mA

Current - Collector Cutoff (Max):: 50nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 40 @ 150mA, 1V

Power - Max:: 625 mW

Frequency - Transition:: -

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92-3

PN3568_J05Z FAQ

1.How can I place an order for PN3568_J05Z through Aetrix?

Please submit a Request for Quotation (RFQ) for PN3568_J05Z on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PN3568_J05Z reliable?

The price and inventory of PN3568_J05Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PN3568_J05Z is usually 5 days.

3.What payment methods are accepted for PN3568_J05Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PN3568_J05Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PN3568_J05Z?

PN3568_J05Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PN3568_J05Z order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PN3568_J05Z?

For technical support, including PN3568_J05Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PN3568_J05Z requirements.

6.How does Aetrix verify that PN3568_J05Z is sourced from the original manufacturer or authorized distributors?

All PN3568_J05Z products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PN3568_J05Z meets industry standards.

7.What is the process for return or replacement of PN3568_J05Z?

All PN3568_J05Z units undergo pre-shipment inspection (PSI). If there is an issue with PN3568_J05Z, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PN3568_J05Z part is unused and in its original packaging.

Return procedure for PN3568_J05Z:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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